Index: trunk/ppStack/src/ppStackMatch.c
===================================================================
--- trunk/ppStack/src/ppStackMatch.c	(revision 17260)
+++ trunk/ppStack/src/ppStackMatch.c	(revision 17261)
@@ -41,7 +41,8 @@
         psLogMsg("ppMerge", PS_LOG_INFO, "Renormalising variance map.");
         if (!pmReadoutWeightRenorm(readout, maskBad, renormMean, renormStdev, renormWidth, rng)) {
-        psError(PS_ERR_UNKNOWN, false, "Unable to renormalise variances.");
-        psFree(output);
-        return false;
+            psError(PS_ERR_UNKNOWN, false, "Unable to renormalise variances.");
+            psFree(output);
+            return false;
+        }
     }